C. difficile infection requires documenting the presence of toxin in the stools, usually by testing for the gene that produces toxin B, using a method called PCR. It is very sensitive, so it should not be used to test solid stools since that is likely a carrier state.
Definition of vassal. 1  1 : a person under the protection of a feudal lord to whom he has vowed homage and fealty : a feudal tenant. 2  2 : one in a subservient or subordinate position.
Vassals in the Middle Ages took an oath to their Master that ensured their life-long service. This oath was known as the Oath of Fealty. The word âfealtyâ is derived from the Latin word âfidelitas.â This is a word meaning fidelity and is symbolic of the fidelity that a vassal owed his lord.